The correlation length divergence of Tolman's length

Philip W Phillips, Udayan Mohanty

Research output: Contribution to journalArticlepeer-review

Abstract

The curvature dependence of the surface tension of liquid drops is studied. A closed expression is derived for the first curvature correction, δ (Tolman's length) to the surface tension. From this expression, we show that when phase interchange symmetry is absent, δ(1) vanishes identically if the density profile is sharp (a step function), (2) is nonzero otherwise, and (3) diverges as the correlation length. It is also shown that the curvature dependence of the surface tension for a finite-sized drop in an Ising model cannot be extracted from the flat interface.

Original languageEnglish (US)
Pages (from-to)6392-6395
Number of pages4
JournalThe Journal of Chemical Physics
Volume83
Issue number12
DOIs
StatePublished - Jan 1 1985
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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